package com.atguigu.yygh.hosp.service.impl;

import com.alibaba.fastjson.JSONObject;
import com.atguigu.yygh.commom.exception.YyghException;
import com.atguigu.yygh.commom.result.ResultCodeEnum;
import com.atguigu.yygh.hosp.mapper.ScheduleMapper;
import com.atguigu.yygh.hosp.repository.ScheduleRepository;
import com.atguigu.yygh.hosp.service.DepartmentService;
import com.atguigu.yygh.hosp.service.HospitalService;
import com.atguigu.yygh.hosp.service.ScheduleService;
import com.atguigu.yygh.model.hosp.BookingRule;
import com.atguigu.yygh.model.hosp.Department;
import com.atguigu.yygh.model.hosp.Hospital;
import com.atguigu.yygh.model.hosp.Schedule;
import com.atguigu.yygh.vo.hosp.BookingScheduleRuleVo;
import com.atguigu.yygh.vo.hosp.ScheduleOrderVo;
import com.atguigu.yygh.vo.hosp.ScheduleQueryVo;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import org.joda.time.DateTime;
import org.joda.time.DateTimeConstants;
import org.joda.time.format.DateTimeFormat;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.*;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.aggregation.Aggregation;
import org.springframework.data.mongodb.core.aggregation.AggregationResults;
import org.springframework.data.mongodb.core.query.Criteria;
import org.springframework.stereotype.Service;
import org.springframework.util.CollectionUtils;

import java.util.*;
import java.util.stream.Collectors;

/**
 * @author mengWu
 * @Date 2021年05月19日 15:26
 */

@Service
public class ScheduleServiceImpl extends ServiceImpl<ScheduleMapper, Schedule> implements ScheduleService {

    @Autowired
    private ScheduleRepository scheduleRepository;

    @Autowired
    private MongoTemplate mongoTemplate;

    @Autowired
    private HospitalService hospitalService;

    @Autowired
    private DepartmentService departmentService;

    //根据医院编号、科室编号和日期，查询排班详细信息
    @Override
    public List<Schedule> getDetailSchedule(String hoscode, String depcode, String workDate) {
        //根据条件查询mongodb,得到list集合
        List<Schedule> scheduleList = scheduleRepository.findScheduleByHoscodeAndDepcodeAndWorkDate(hoscode, depcode, new DateTime(workDate).toDate());

        //遍历得到的list集合，向其中设置其他值：医院名称、科室名称、日期对应的星期
        scheduleList.stream().forEach(item -> {
            this.packageSchedule(item);
        });
        return scheduleList;
    }

    //封装排班详情其他值、医院名称、科室名称、日期对应星期
    private Schedule packageSchedule(Schedule schedule) {
        //设置医院名称 -- 根据医院编号，得到医院名称
        schedule.getParam().put("hosname", hospitalService.getHospName(schedule.getHoscode()));
        //设置科室名称 -- 根据医院编号和科室编号查询科室名称
        schedule.getParam().put("depname", departmentService.getDeptName(schedule.getHoscode(), schedule.getDepcode()));
        //设置日期对应的星期的值
        schedule.getParam().put("dayOfWeek", this.getDayOfWeek(new DateTime(schedule.getWorkDate())));

        return schedule;

    }

    //根据医院编号，科室编号，查询排班规则数据
    @Override
    public Map<String, Object> getRuleSchedule(long page, long limit, String hoscode, String depcode) {
        /*
         * 1、根据医院编号，科室编号设置条件
         * 2、根据workDate做分组
         * 3、

         * @author mengWu
         * @date 2021/5/22 10:59
         * @param page
         * @param limit
         * @param hoscode
         * @param depcode
         * @return java.util.Map<java.lang.String,java.lang.Object>
         */
        //1、根据医院编号和科室编号进行查询
        Criteria criteria = Criteria.where("hoscode").is(hoscode).and("depcode").is(depcode);
        //2、根据工作日期workDate进行分组
        Aggregation agg = Aggregation.newAggregation(
                //匹配条件
                Aggregation.match(criteria),
                //分组字段
                Aggregation.group("workDate")
                        .first("workDate").as("workDate")
                        //3、统计号源的数量
                        .count().as("docCount")
                        .sum("reservedNumber").as("reservedNumber")
                        .sum("availableNumber").as("availableNumber"),
                //排序
                Aggregation.sort(Sort.Direction.DESC, "workDate"),
                //分页
                Aggregation.skip((page - 1) * limit),
                Aggregation.limit(limit)
        );
        //调用方法最终去执行
        AggregationResults<BookingScheduleRuleVo> aggResult = mongoTemplate.aggregate(agg, Schedule.class, BookingScheduleRuleVo.class);
        List<BookingScheduleRuleVo> bookingScheduleRuleVoList = aggResult.getMappedResults();

        //分组查询后总的记录数
        Aggregation totalAgg = Aggregation.newAggregation(
                Aggregation.match(criteria),
                Aggregation.group("workDate")
        );
        AggregationResults<BookingScheduleRuleVo> totalAggResults = mongoTemplate.aggregate(totalAgg, Schedule.class, BookingScheduleRuleVo.class);

        int total = totalAggResults.getMappedResults().size();

        //获取日期对应的星期
        for (BookingScheduleRuleVo bookingScheduleRuleVo : bookingScheduleRuleVoList) {
            //得到日期
            Date workDate = bookingScheduleRuleVo.getWorkDate();
            //转化
            String dayOfWeek = this.getDayOfWeek(new DateTime(workDate));
            bookingScheduleRuleVo.setDayOfWeek(dayOfWeek);
        }

        //获取医院名称 -- 根据医院编号，获取医院名称
        String hospName = hospitalService.getHospName(hoscode);
        //其他基础数据保存
        Map<String, Object> baseMap = new HashMap<>();

        baseMap.put("hospName", hospName);

        //设置最终的数据，进行返回
        Map<String, Object> result = new HashMap<>();

        result.put("bookingScheduleRuleList", bookingScheduleRuleVoList);
        result.put("total", total);
        result.put("baseMap", baseMap);

        return result;
    }

    /**
     * 根据日期获取周几数据
     *
     * @param dateTime
     * @return
     */
    private String getDayOfWeek(DateTime dateTime) {
        String dayOfWeek = "";
        switch (dateTime.getDayOfWeek()) {
            case DateTimeConstants.SUNDAY:
                dayOfWeek = "周日";
                break;
            case DateTimeConstants.MONDAY:
                dayOfWeek = "周一";
                break;
            case DateTimeConstants.TUESDAY:
                dayOfWeek = "周二";
                break;
            case DateTimeConstants.WEDNESDAY:
                dayOfWeek = "周三";
                break;
            case DateTimeConstants.THURSDAY:
                dayOfWeek = "周四";
                break;
            case DateTimeConstants.FRIDAY:
                dayOfWeek = "周五";
                break;
            case DateTimeConstants.SATURDAY:
                dayOfWeek = "周六";
            default:
                break;
        }
        return dayOfWeek;
    }


    //上传排班接口
    @Override
    public void save(Map<String, Object> paramMap) {
        /*
         * 先查询数据是否存在，存在执行更新操作，不存在执行添加操作
         * @author mengWu
         * @date 2021/5/19 16:00
         * @param paramMap
         */
        //将paramMap集合转换成对象
        Schedule schedule = JSONObject.parseObject(JSONObject.toJSONString(paramMap), Schedule.class);
        //根据医院编号和排班编号查询排班数据
        Schedule scheduleExist = scheduleRepository.getScheduleByHoscodeAndHosScheduleId(schedule.getHoscode(), schedule.getHosScheduleId());

        //判断是否存在
        if (scheduleExist != null) {
            //执行更新操作
            scheduleExist.setUpdateTime(new Date());
            scheduleExist.setIsDeleted(0);
            //保存
            scheduleRepository.save(scheduleExist);
        } else {
            schedule.setCreateTime(new Date());
            schedule.setUpdateTime(new Date());
            schedule.setIsDeleted(0);
            schedule.setStatus(1);
            //保存
            scheduleRepository.save(schedule);
        }


    }

    //查询排版接口
    @Override
    public Page<Schedule> findPageSchedule(int page, int limit, ScheduleQueryVo scheduleQueryVo) {
        //创建Pageable对象。设置当前页，每页记录数
        Pageable pageable = PageRequest.of(page - 1, limit);
        //创建Example对象
        Schedule schedule = new Schedule();

        BeanUtils.copyProperties(scheduleQueryVo, schedule);

        schedule.setIsDeleted(0);
        schedule.setStatus(1);

        ExampleMatcher matcher = ExampleMatcher.matching()
                .withStringMatcher(ExampleMatcher.StringMatcher.CONTAINING)
                .withIgnoreCase(true);
        Example<Schedule> example = Example.of(schedule, matcher);

        Page<Schedule> all = scheduleRepository.findAll(example, pageable);

        return all;
    }

    @Override
    public void remove(String hoscode, String hosScheduleId) {
        /*
         * 根据医院编号和排班编号，查询数据
         * 判断数据库中是否有数据，如果不存在就不删除，如果有数据，根据id进行删除
         * @author mengWu
         * @date 2021/5/19 16:43
         * @param hoscode
         * @param hosScheduleId
         */
        //根据医院编号和排班编号，查询
        Schedule schedule = scheduleRepository.getScheduleByHoscodeAndHosScheduleId(hoscode, hosScheduleId);
        //判断
        if (schedule != null) {
            //调用删除方法 -- 根据id进行删除
            scheduleRepository.deleteById(schedule.getId());
        }
    }

    //获取可预约数据
    @Override
    public Map<String, Object> getBookingScheduleRule(Integer page, Integer limit, String hoscode, String depcode) {
        Map<String, Object> result = new HashMap<>();
        //获取预约规格 -- 根据医院编号获取排班规则
        Hospital hospital = hospitalService.getByHoscode(hoscode);
        //得到预约规则 -- 先判断
        if (null == hospital) {
            //医院数据为空，返回异常
            throw new YyghException(ResultCodeEnum.DATA_ERROR);
        }
        BookingRule bookingRule = hospital.getBookingRule();
        //获取可预约日期的数据 -- 分页
        IPage iPage = this.getListDate(page, limit, bookingRule);

        //获取当前可预约的日期
        List<Date> dateList = iPage.getRecords();

        //获取可预约日期里面科室剩余的预约数
        //查询MongoDB -- in ： 查询某个范围中的值
        Criteria criteria = Criteria.where("hoscode").is(hoscode).and("depcode").is(depcode).and("workDate").in(dateList);

        Aggregation agg = Aggregation.newAggregation(
                Aggregation.match(criteria),
                Aggregation.group("workDate").first("workDate").as("workDate").
                        count().as("docCount")
                .sum("availableNumber").as("availableNumber")
                .sum("reservedNumber").as("reservedNumber")
        );
        AggregationResults<BookingScheduleRuleVo> aggregateResult = mongoTemplate.aggregate(agg, Schedule.class, BookingScheduleRuleVo.class);

        List<BookingScheduleRuleVo> scheduleVoList = aggregateResult.getMappedResults();

        //合并数据 -- map集合， key是日期， value预约规则和剩余数量等

        Map<Date, BookingScheduleRuleVo> scheduleVoMap = new HashMap<>();
        if(!CollectionUtils.isEmpty(scheduleVoList)) {
            scheduleVoMap = scheduleVoList.stream().
                    collect(Collectors.toMap(BookingScheduleRuleVo::getWorkDate, BookingScheduleRuleVo -> BookingScheduleRuleVo));
        }

        //获取可预约的排班规则
        List<BookingScheduleRuleVo> bookingScheduleRuleVoList = new ArrayList<>();
        //根据日期循环
        for (int i= 0, len = dateList.size(); i < len; i++){
            Date date =dateList.get(i);
            //从map集合中根据key获取value值
            BookingScheduleRuleVo bookingScheduleRuleVo = scheduleVoMap.get(date);

            //如果当天没有排班的医生
            if (null == bookingScheduleRuleVo){
                //设置当前号源等于0；
                bookingScheduleRuleVo = new BookingScheduleRuleVo();
                //就诊医生人数
                bookingScheduleRuleVo.setDocCount(0);
                //剩余科室数量 -1
                bookingScheduleRuleVo.setAvailableNumber(-1);
            }
            bookingScheduleRuleVo.setWorkDate(date);
            bookingScheduleRuleVo.setWorkDateMd(date);

            //计算当前预约日期对应的星期
            String dayOfWeek = this.getDayOfWeek(new DateTime(date));
            bookingScheduleRuleVo.setDayOfWeek(dayOfWeek);

            //最后一页最后一条记录为即将预约   状态 0：正常 1：即将放号 -1：当天已停止挂号
            if(i == len-1 && page == iPage.getPages()) {
                bookingScheduleRuleVo.setStatus(1);
            } else {
                bookingScheduleRuleVo.setStatus(0);
            }
            //当天预约如果过了停号时间， 不能预约
            if(i == 0 && page == 1) {
                DateTime stopTime = this.getDateTime(new Date(), bookingRule.getStopTime());
                if(stopTime.isBeforeNow()) {
                    //停止预约
                    bookingScheduleRuleVo.setStatus(-1);
                }
            }

            bookingScheduleRuleVoList.add(bookingScheduleRuleVo);

    }


        //可预约日期规则数据
        result.put("bookingScheduleList", bookingScheduleRuleVoList);
        result.put("total", iPage.getTotal());
        //其他基础数据
        Map<String, String> baseMap = new HashMap<>();
        //医院名称
        baseMap.put("hosname", hospitalService.getHospName(hoscode));
        //科室
        Department department =departmentService.getDepartment(hoscode, depcode);
        //大科室名称
        baseMap.put("bigname", department.getBigname());
        //科室名称
        baseMap.put("depname", department.getDepname());
        //月
        baseMap.put("workDateString", new DateTime().toString("yyyy年MM月"));
        //放号时间
        baseMap.put("releaseTime", bookingRule.getReleaseTime());
        //停号时间
        baseMap.put("stopTime", bookingRule.getStopTime());
        result.put("baseMap", baseMap);
        return result;

    }

    //根据排班的id获取排班的数据
    @Override
    public Schedule getSchedlueId(String scheduleId) {
        Schedule schedule = scheduleRepository.findById(scheduleId).get();

        return this.packageSchedule(schedule);
    }

    //根据排班id获取预约下单数据 -- 包含相关规则
    @Override
    public ScheduleOrderVo getScheduleOrderVo(String scheduleId) {
        ScheduleOrderVo scheduleOrderVo = new ScheduleOrderVo();
        //获取排班信息
        Schedule schedule = baseMapper.selectById(scheduleId);
        //判断，如果为空，抛出自定义异常
        if (null == schedule){
            throw new YyghException(ResultCodeEnum.PARAM_ERROR);
        }
        //获取预约规则信息
        Hospital hospital = hospitalService.getByHoscode(schedule.getHoscode());
        //判断
        if (null == hospital){
            throw new YyghException(ResultCodeEnum.PARAM_ERROR);
        }
        BookingRule bookingRule = hospital.getBookingRule();
        //判断
        if (null == bookingRule){
            throw new YyghException(ResultCodeEnum.PARAM_ERROR);
        }
        //将获取到的数据，设置到scheduleOrderVo中
        scheduleOrderVo.setHoscode(schedule.getHoscode());
        scheduleOrderVo.setHosname(hospitalService.getHospName(schedule.getHoscode()));
        scheduleOrderVo.setDepcode(schedule.getDepcode());
        scheduleOrderVo.setDepname(departmentService.getDeptName(schedule.getHoscode(),schedule.getDepcode()));
        scheduleOrderVo.setHosScheduleId(schedule.getHosScheduleId());
        scheduleOrderVo.setAvailableNumber(schedule.getAvailableNumber());
        scheduleOrderVo.setTitle(schedule.getTitle());
        scheduleOrderVo.setReserveDate(schedule.getWorkDate());
        scheduleOrderVo.setReserveTime(schedule.getWorkTime());
        scheduleOrderVo.setAmount(schedule.getAmount());

        //相关日期的处理
        //退号截止天数（如：就诊前一天为-1，当天为0）
        int quitDay = bookingRule.getQuitDay();
        DateTime quitTime = this.getDateTime(new DateTime(schedule.getWorkDate()).plusDays(quitDay).toDate(), bookingRule.getQuitTime());
        scheduleOrderVo.setQuitTime(quitTime.toDate());

        //预约开始时间
        DateTime startTime = this.getDateTime(new Date(), bookingRule.getReleaseTime());
        scheduleOrderVo.setStartTime(startTime.toDate());

        //预约截止时间
        DateTime endTime = this.getDateTime(new DateTime().plusDays(bookingRule.getCycle()).toDate(), bookingRule.getStopTime());
        scheduleOrderVo.setEndTime(endTime.toDate());

        //当天停止挂号时间
        DateTime stopTime = this.getDateTime(new Date(), bookingRule.getStopTime());
        scheduleOrderVo.setStartTime(startTime.toDate());

        return scheduleOrderVo;
    }

    //获取可预约日期的分页数据
    private IPage getListDate(Integer page, Integer limit, BookingRule bookingRule) {
        //获取当天的放号时间 -- 年 月 日 小时 分钟
        DateTime releaseTime = this.getDateTime(new Date(), bookingRule.getReleaseTime());
        //获取预约周期
        Integer cycle = bookingRule.getCycle();
        //如果当天的放号时间已经过去了，预约周期从后一天开始计算，周期+1
        if (releaseTime.isBeforeNow()) {
            cycle += 1;
        }
        //获取可预约的所有日期，最后一天显示即将放号
        List<Date> dateList = new ArrayList<>();

        for (int i = 0; i < cycle; i++) {
            DateTime curDateTime = new DateTime().plusDays(i);
            String dateString = curDateTime.toString("yyyy-MM-dd");

            dateList.add(new DateTime(dateString).toDate());
        }
        //预约的周期是不同的，每页显示的数据数量为7条，超过这个数量，则进行分页 -- 分页
        List<Date> pageDateList = new ArrayList<>();
        int start = (page - 1) * limit;
        int end = (page - 1) * limit + limit;
        //如果可以显示的数据小于7，直接显示，如果大于7，则分页显示
        if (end > dateList.size()) {
            //直接显示
            end = dateList.size();
        }
        for (int i = start; i < end; i++) {
            pageDateList.add(dateList.get(i));
        }
        //分页
        IPage<Date> iPage = new com.baomidou.mybatisplus.extension.plugins.pagination.Page<>(page, 7, dateList.size());
        iPage.setRecords(pageDateList);
        return iPage;
    }

    /**
     * 将Date日期（yyyy-MM-dd HH:mm）转换为DateTime
     */
    private DateTime getDateTime(Date date, String timeString) {
        String dateTimeString = new DateTime(date).toString("yyyy-MM-dd") + " " + timeString;
        DateTime dateTime = DateTimeFormat.forPattern("yyyy-MM-dd HH:mm").parseDateTime(dateTimeString);
        return dateTime;
    }

}
